Clark County Post Offices

7 W Pleasant St
Catawba, Ohio 43010

17 S Hampton Rd
Donnelsville, Ohio 45319

27 N Xenia Dr
Enon, Ohio 45323

117 W Main St
Medway, Ohio 45341

107 W Lake Ave
New Carlisle, Ohio 45344

23 N Main St
North Hampton, Ohio 45349

125 S Chillicothe St
South Charleston, Ohio 45368

21 1/2 W Main St
South Vienna, Ohio 45369

150 N Limestone St
Springfield, Ohio 45501

3 W Main St
Tremont City, Ohio 45372

Clark County

There are 10 US Post Offices in Clark County serving a total of 35,496 residents equating to 3,550 residents per post office. It's estimated that approximately 56,656 packages are handled across the 10 county post offices annually. For British letters to voters in Clark County in the 2004 Presidential election, see The Guardian. Clark County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 138,333. Its county seat is Springfield. The county was created on March 1, 1818, and was named for General George Rogers Clark, a hero of the American Revolution. Clark County comprises the Springfield, OH Metropolitan Statistical Area, which is also included in the Dayton-Springfield-Sidney-OH Combined Statistical Area."